U.S. patent application number 09/904357 was filed with the patent office on 2003-01-16 for glass cleaning wipe.
This patent application is currently assigned to Colgate-Palmolive Company. Invention is credited to Julemont, Jean.
Application Number | 20030013365 09/904357 |
Document ID | / |
Family ID | 25419001 |
Filed Date | 2003-01-16 |
United States Patent
Application |
20030013365 |
Kind Code |
A1 |
Julemont, Jean |
January 16, 2003 |
Glass cleaning wipe
Abstract
A glass cleaning wipe comprising a nonwoven fabric containing
wood pulp fibers, the nonwoven fabric is impregnated with a glass
cleaning composition.
Inventors: |
Julemont, Jean; (Verviers,
BE) |
Correspondence
Address: |
COLGATE-PALMOLIVE COMPANY
909 RIVER ROAD
PISCATAWAY
NJ
08855
US
|
Assignee: |
Colgate-Palmolive Company
|
Family ID: |
25419001 |
Appl. No.: |
09/904357 |
Filed: |
July 12, 2001 |
Current U.S.
Class: |
442/93 ; 442/105;
442/153; 442/79; 442/96 |
Current CPC
Class: |
Y10T 442/2869 20150401;
Y10T 442/2303 20150401; Y10T 442/2279 20150401; Y10T 442/2484
20150401; C11D 3/2068 20130101; Y10T 442/2164 20150401; Y10T
442/2377 20150401; Y10T 442/277 20150401; C11D 17/049 20130101;
Y10T 442/2041 20150401; Y10T 442/2098 20150401; A47L 1/15 20130101;
C11D 3/201 20130101 |
Class at
Publication: |
442/93 ; 442/79;
442/96; 442/105; 442/153 |
International
Class: |
B32B 009/04; B32B
005/02; B32B 027/04; B32B 027/12 |
Claims
What is claimed:
1. A glass cleaning wipe which comprises approximately: (a) 30 wt.
% to 40 wt. % of a nonwoven fabric consisting of 60 wt. % to 95 wt.
% of wood pulp fibers, 2.5 wt. % to 10 wt. % of viscose fibers and
2.5 wt. % to 10 wt. % of polyester fibers; and (b) 60 wt. % to 70
wt. % of a liquid glass cleaning composition being impregnated in
said nonwoven fabric, wherein said liquid glass cleaning
composition comprises: (i) 0.1 wt. % to 5 wt. % of an anionic
surfactant; (ii) 0.5 wt. % to 10 wt. % of a C.sub.1-C.sub.4
alkanol; (iii) 0.5 wt. % to 8 wt. % of a cosurfactant; (iv) 0.1 wt.
% to 1 wt. % of an antirain or antidust agent; and (v) the balance
being water, wherein the composition has a pH of about 7 to about
9.5.
2. The glass cleaning wipe of claim 1, wherein said anionic
surfactant is a C.sub.8-C.sub.18 ethoxylated alkyl ether sulfate
surfactant.
3. The glass cleaning wipe of claim 2, wherein said C.sub.1-C.sub.4
alkanol is ethanol or isopropanol.
4. The glass cleaning wipe of claim 3, wherein said cosurfactant is
a glycol ether.
5. The glass cleaning wipe of claim 2, wherein said glycol ether is
propylene glycol N-butyl ether.
6. The glass cleaning wipe of claim 1, wherein said cosurfactant is
glycol ether.
7. The glass cleaning wipe of claim 6, wherein said glycol ether is
propylene glycol N-butyl ether.
8. The glass cleaning wipe of claim 4 further including a
perfume.
9. The glass cleaning wipe of claim 8 further including
iodopropynyl butyl carbamate.
10. The glass cleaning wipe of claim 6 further including a
perfume.
11. The glass cleaning wipe of claim 10 further including
iodopropynyl butyl carbamate.
12. The glass cleaning wipe of claim 1, wherein the antirain or
antidust agent is choline chloride or a cationic quaternary
alkylamine salt.
Description
FIELD OF INVENTION
[0001] The present invention relates to a nonwoven fabric which has
been impregnated with a liquid glass cleaning composition.
BACKGROUND OF THE INVENTION
[0002] The patent literature describes numerous wipes for both body
cleaning and cleaning of hard surfaces but none describe the
instant glass cleaning wipes which have improved cleaning
characteristics in the minimization of streaking and residue.
[0003] U.S. Pat. Nos. 5,756,612; 5,763,332; 5,908,707; 5,914,177;
5,980,922 and 6,168,852 teach cleaning compositions which are
inverse emulsions.
[0004] U.S. Pat. Nos. 6,183,315 and 6,183,763 teach cleaning
compositions containing a proton donating agent and having an
acidic pH.
[0005] U.S. Pat. Nos. 5,863,663; 5,952,043; 6,063,746 and 6,121,165
teaches cleaning compositions which are out in water emulsions.
SUMMARY OF THE INVENTION
[0006] A glass cleaning wipe comprising a nonwoven fabric
containing wood pulp fibers, wherein is the nonwoven fabric is
impregnated with a liquid glass cleaning composition containing an
anionic surfactant, a cosurfactant, an alkanol, a quaternary
alkylol amine salt and water, wherein the liquid glass cleaning
composition is not an emulsion and does not contain proteins,
metallic salts, enzymes, amides, sodium hypochlorite, dimethicone,
a proton donating agent, N-methyl-2-pyrrolidone, monoalkyl
phosphate or silicon based sulfosuccinate.
DETAILED DESCRIPTION OF THE INVENTION
[0007] The present invention relates to a glass cleaning wipe which
comprises approximately:
[0008] (a) 30 wt. % to 40 wt. % of a nonwoven fabric consisting of
60 wt. % to 95 wt. % of wood pulp fibers, 2.5 wt. % to 10 wt. % of
viscose fibers and 2.5 wt. % to 10 wt. % of polyester fibers;
and
[0009] (b) 60 wt. % to 70 wt. % of a liquid glass cleaning
composition being impregnated in said nonwoven fabric, wherein said
liquid glass cleaning composition comprises:
[0010] (i) 0.1 wt. % to 5 wt. %, 0.25 wt. % to 4 wt. % of an
anionic surfactant;
[0011] (ii) 0.5 wt. % to 10 wt. %, more preferably 1 wt. % to 6 wt.
% of a C.sub.1-C.sub.4 alkanol;
[0012] (iii) 0.5 wt. % to 8 wt. %, more preferably 1 wt. % to 5 wt.
% of a cosurfactant;
[0013] (iv) 0.1 wt. % to 1 wt. %, more preferably 0.2 wt. % to 0.8
wt. % of an antirain or antidust agent, a cationic quaternary
alkylolamine salt, or choline chloride;
[0014] (v) 0 to 0.25 wt. %, more preferably 0.01 wt. % to 0.1 wt. %
of a perfume;
[0015] (vi) 0 to 0.1 wt. %, more preferably 0.01 wt. % to 0.1 wt. %
of a preservative such as iodo propynyl butyl carbanate; and
[0016] (vii) the balance being water, wherein the composition has a
pH of about 7 to about 9.5, more preferably about 7.5 to about
8.5.
[0017] The anionic surfactant used in the instant invention are
selected from the group consisting of sulfate anionic surfactants
and sulfonate anionic surfactants, wherein the preferred anionic
surfactant is a C.sub.8-C.sub.18 ethoxylated alkyl ether sulfate
surfactant.
[0018] The anionic sulfonate surfactants which may be used in the
detergent of this invention are water soluble and include the
sodium, potassium, ammonium and ethanolammonium salts of linear
C.sub.8-C.sub.16 alkyl benzene sulfonates; C.sub.10-C.sub.20
paraffin sulfonates, alpha olefin sulfonates containing about 10-24
carbon atoms and C.sub.8-C.sub.18 ethoxylated alkyl ether sulfates
and mixtures thereof. The preferred anionic sulfonate surfactant is
a C.sub.12-18 paraffin sulfonate.
[0019] The paraffin sulfonates may be monosulfonates or
di-sulfonates and usually are mixtures thereof, obtained by
sulfonating paraffins of 10 to 20 carbon atoms. Preferred paraffin
sulfonates are those of C.sub.12-18 carbon atoms chains, and more
preferably they are of C.sub.14-17 chains. Paraffin sulfonates that
have the sulfonate group(s) distributed along the paraffin chain
are described in U.S. Pat. Nos. 2,503,280; 2,507,088; 3,260,744;
and 3,372,188; and also in German Patent 735,096. Such compounds
may be made to specifications and desirably the content of paraffin
sulfonates outside the C.sub.14-17 range will be minor and will be
minimized, as will be any contents of di- or poly-sulfonates.
[0020] Examples of suitable other sulfonated anionic detergents are
the well known higher alkyl mononuclear aromatic sulfonates, such
as the higher alkylbenzene sulfonates containing 9 to 18 or
preferably 9 to 16 carbon atoms in the higher alkyl group in a
straight or branched chain, or C.sub.8-15 alkyl toluene sulfonates.
A preferred alkylbenzene sulfonate is a linear alkylbenzene
sulfonate having a higher content of 3-phenyl (or higher) isomers
and a correspondingly lower content (well below 50%) of 2-phenyl
(or lower) isomers, such as those sulfonates wherein the benzene
ring is attached mostly at the 3 or higher (for example 4, 5, 6 or
7) position of the alkyl group and the content of the isomers in
which the benzene ring is attached in the 2 or 1 position is
correspondingly low. Preferred materials are set forth in U.S. Pat.
No. 3,320,174, especially those in which the alkyls are of 10 to 13
carbon atoms.
[0021] The C.sub.8-18 ethoxylated alkyl ether sulfate surfactants
have the structure
R--(OCHCH.sub.2).sub.nOS.sub.3.sup.-M.sup.+
[0022] wherein n is about 1 to about 22 more preferably 1 to 3 and
R is an alkyl group having about 8 to about 18 carbon atoms, more
preferably 12 to 15 and natural cuts, for example, C.sub.12-14 or
C.sub.12-16 and M is an ammonium cation or a metal cation, most
preferably sodium.
[0023] The ethoxylated alkyl ether sulfate may be made by sulfating
the condensation product of ethylene oxide and C.sub.8-10 alkanol,
and neutralizing the resultant product. The ethoxylated alkyl ether
sulfates differ from one another in the number of carbon atoms in
the alcohols and in the number of moles of ethylene oxide reacted
with one mole of such alcohol. Preferred ethoxylated alkyl ether
polyethenoxy sulfates contain 12 to 15 carbon atoms in the alcohols
and in the alkyl groups thereof, e.g., sodium myristyl (3 EO)
sulfate.
[0024] Ethoxylated C.sub.8-18 alkylphenyl ether sulfates containing
from 2 to 6 moles of ethylene oxide in the molecule are also
suitable for use in the invention compositions. These detergents
can be prepared by reacting an alkyl phenol with 2 to 6 moles of
ethylene oxide and sulfating and neutralizing the resultant
ethoxylated alkylphenol.
[0025] As used herein and in the appended claims the term "perfume"
is used in its ordinary sense to refer to and include any non-water
soluble fragrant substance or mixture of substances including
natural (i.e., obtained by extraction of flower, herb, blossom or
plant), artificial (i.e., mixture of natural oils or oil
constituents) and synthetically produced substance) odoriferous
substances. Typically, perfumes are complex mixtures of blends of
various organic compounds such as alcohols, aldehydes, ethers,
aromatic compounds and varying amounts of essential oils (e.g.,
terpenes) such as from 0% to 80%, usually from 10% to 70% by
weight, the essential oils themselves being volatile odoriferous
compounds and also serving to dissolve the other components of the
perfume.
[0026] In the present invention the precise composition of the
perfume is of no particular consequence to cleaning performance so
long as it meets the criteria of water immiscibility and having a
pleasing odor. Naturally, of course, especially for cleaning
compositions intended for use in the home, the perfume, as well as
all other ingredients, should be cosmetically acceptable, i.e.,
non-toxic, hypoallergenic, etc. The instant compositions show a
marked improvement in ecotoxocity as compared to existing
commercial products.
[0027] The cosurfactants in the instant compositions are selected
from the group consisting of polypropylene glycol of the formula
HO(CH.sub.3CHCH.sub.2O).sub.nH wherein n is a number from 1 to 18,
and mono and di C.sub.1-C.sub.6 alkyl ethers and esters of ethylene
glycol and propylene glycol having the structural formulas
R(X).sub.nOH, R.sub.1(X).sub.nOH, R(X).sub.nOR and
R.sub.1(X).sub.nOR.sub.1 wherein R is C.sub.1-C.sub.6 alkyl group,
R.sub.1 is C.sub.2-C.sub.4 acyl group, X is (OCH.sub.2CH.sub.2) or
(OCH.sub.2(CH.sub.3)CH) and n is a number from 1 to 4, diethylene
glycol, triethylene glycol, an alkyl lactate, wherein the alkyl
group has 1 to 6 carbon atoms, 1 methoxy-2-propanol, 1
methoxy-3-propanol, and 1 methoxy 2-, 3- or 4-butanol.
[0028] Representative members of the polypropylene glycol include
dipropylene glycol and polypropylene glycol having a molecular
weight of 150 to 1000, e.g., polypropylene glycol 400. Satisfactory
glycol ethers are ethylene glycol monobutyl ether (butyl
cellosolve), diethylene glycol monobutyl ether (butyl carbitol),
triethylene glycol monobutyl ether, mono, di, tri propylene glycol
monobutyl ether, tetraethylene glycol monobutyl ether, mono, di,
tripropylene glycol monomethyl ether, propylene glycol monomethyl
ether, ethylene glycol monohexyl ether, diethylene glycol monohexyl
ether, propylene glycol tertiary butyl ether, ethylene glycol
monoethyl ether, ethylene glycol monomethyl ether, ethylene glycol
monopropyl ether, ethylene glycol monopentyl ether, diethylene
glycol monomethyl ether, diethylene glycol monoethyl ether,
diethylene glycol monopropyl ether, diethylene glycol monopentyl
ether, triethylene glycol monomethyl ether, triethylene glycol
monoethyl ether, triethylene glycol monopropyl ether, triethylene
glycol monopentyl ether, triethylene glycol monohexyl ether, mono,
di, tripropylene glycol monoethyl ether, mono, di tripropylene
glycol monopropyl ether, mono, di, tripropylene glycol monopentyl
ether, mono, di, tripropylene glycol monohexyl ether, mono, di,
tributylene glycol mono methyl ether, mono, di, tributylene glycol
monoethyl ether, mono, di, tributylene glycol monopropyl ether,
mono, di, tributylene glycol monobutyl ether, mono, di, tributylene
glycol monopentyl ether and mono, di, tributylene glycol monohexyl
ether, ethylene glycol monoacetate and dipropylene glycol
propionate. While all of the aforementioned glycol ether compounds
provide the described stability, the most preferred cosurfactant is
propylene glycol N-butyl ether.
[0029] The preferred C.sub.1-C.sub.4 alkanols are ethanol or
isopropanol and mixtures thereof
[0030] The final essential ingredient in the instant is water. The
proportion of water in the compositions generally is in the range
of 70 wt. % to 98.5 wt. %.
[0031] The liquid glass cleaning composition of this invention may,
if desired, also contain other components either to provide
additional effect or to make the product more attractive to the
consumer. The following are mentioned by way of example: Colors or
dyes in amounts up to 0.5% by weight; preservatives or
antioxidizing agents, such as formalin, 5-bromo-5-nitro-dioxan-1,3;
5-chloro-2-methyl-4-isothaliazolin-- 3-one,
2,6-di-tert,butyl-p-cresol, etc., in amounts up to 2% by weight;
and pH adjusting agents, such as sulfuric acid or sodium hydroxide,
as needed.
[0032] The liquid glass cleaning compositions are prepared by
simple batch mixing at 25.degree. C.-30.degree. C. The nonwoven
fabric is impregnated with the liquid glass cleaning composition by
means of a positive impregnation process. The liquid is positively
fed into the nonwoven fabric through a controlled gear pump and
injection bar at a ratio of about 2 grams of liquid glass cleaning
composition to about 1 gram of the nonwoven fabric.
[0033] The nonwoven fabric which is manufactured by Dexter
Corporation under the name Hydraspun comprises about 60% to 95% of
wood pulp fabrics, 2.5 wt. % to 20 wt. % of viscose fibers and 2.5
wt. % to 20 wt. % of polyester fibers. Excluded as substrates for
the wipes are any nonwoven fabric substitute that does not contain
at least 50 wt. % of wood pulp fibers such as Spunlace nonwoven
fabric substrate.
[0034] The following examples illustrate liquid cleaning
compositions of the described invention. Unless otherwise
specified, all percentages are by weight. The exemplified
compositions are illustrative only and do not limit the scope of
the invention. Unless otherwise specified, the proportions in the
examples and elsewhere in the specification are by weight.
EXAMPLE 1
[0035] The following glass wipe liquid glass cleaning wipes were
made by the aforementioned process.
1 A B Wt. % Wt. % Part I Propylene glycol N-butyl ether 3.0 3.0
Ethanol 3.0 3.0 C12-C14 ethoxylated alkyl ether sulfate EO2:1 0.75
0.75 Quaternary alkylol amine salt Avitex 0.5 0.5 DN (Dupont
Chemical) Perfume 0.05 0.05 Water 92.7 92.7 Part II Part I 66.66%
66.66% Spunlace 33.34% Hydapun 8579 33.34%
[0036] Formulas A and B were tested for cleaning performance on
both pespex tiles and a mirror and rated on a 10 point scale
(0=very poor/much residue and 10=very good/no residue).
2 A B Pespex tiles 4.8 8.0 Mirror 5.4 7.2
[0037] 15 cm.times.15 cm Perspex black tiles are wiped with the
impregnated test substrate in a circular movement such that the
middle of the tile is wet and contours kept dry.
[0038] Each test product is applied on 5 different tiles (=5
replicates), then 5 judges score the residue pattern (observation
made under indirect light conditions) of each tile from 0=very poor
residue score up to 10=excellent, no residue on a 10 point scale.
Results are then analyzed statistically. In case of current test,
Perspex tiles were judged under indirect light conditions while
mirror tiles were observed under razing light obtained with high
power halogen lamp allowing to simulate sun light condition and
therefore highlighting even low residue results.
* * * * *